Railway-car truck.



No. 705,763. Patentedluly 29, I902. H. R. KEITHLEY.

RAILWAY GAR TRUCK.

(Application filed May 21, 1902,)

(No Model.

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I No. 705,763.. Patented July 29, I902.

H. R. KEITHLEY; RAILWAY CAR TRUCK.

(Application filed May 21, 1902.)

(no Model.) 2 Sheets-Shet 2.

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UNITED STATES PATENT OFFICE.

HERBERT KEITI-ILEY, OF BUFFALO, NEW YORK.

RAILWAY-CAR TRUCK.

SPECIFICATION forming part of Letters PatentNo. 705,763, dated July 29,1902.

Application filed May 21, 1902. Serial No. 108,377| (No model.)

rolled bars connected together and to the axleboXes by but two verticalbolts, which receive all of the shearing strain. With continued usageunder heavy loads these bolts become worn or bent from such shearingstrains, causing a permanent set or downward deflection of the sideframes. It has been proposed to make the side frames of pressed steel orpressed-steel parts; but the pressedsteel constructions are expensiveand are ob 'jected to by engineers on account of the distortion of theparts due to-strains in the metal resulting from the pressingoperations.

The object of the present invention is to provide a diamond truck ofmaximum strength,

rigidity, and durability having its side frames built up of rolledflangedshapes riveted torelieve theanchoring-bolts at the axle-boxes ofall shear, and thereby preventing any set or downward deflection of thetruck side frames.

In the accompanying drawings, consisting of two sheets, Figure l is aside elevation of a railway-car truck embodying the invention. Fig. 2 isa view thereof one-half in end elevation and one-half in centralvertical section. Fig. 3 is afragmentary end view showing aslightlymodified construction, of the side frame. Figs. 4, 5, and 6 aresimilar views showing still other constructions of the side frame. l. jLike letters of reference refer to like parts in the several figures.

The truck-frame comprises two trussed side frames connected by atransverse meniberor spring-board, the side frame being composed ofupper and lower chords rigidly attached at their ends to the axle-boxesand securely riveted to each other.

In the form of the invention shown in Figs. 1 and 2 the lower chord A isformed of an angle-bar arranged with one flange or portion ct standingvertically and the other flange a projecting laterally from the loweredge of v the vertical flange. The end portions of the lower chord arehorizontal and rest on the tops of the axle-boxes B, and the centralportion of the lower chordis depressed or bent down wardly between theaxle-boxes, as usual. The upper chord is composed of two angle-bars Gand D, each arranged with one flange or portion standing vertically andone flange projecting laterally. The horizontal flange c of theangle-bar O at the ends of the bar rests upon the horizontal endportions of the lateral flange aof the lower chord, while the ends ofits other flange stand vertically beside the I ends of the verticalflange o. of the lower chord. The lateral flange of the other angle-barD of the upper chord projects in a direction opposite to that of thelateral flange of the anglebar 0 of the upper chord and preferably fromthe upper edge of its vertical flange. The angle-bar D of the upperchord may, however, be reversed, so that its lateral flange projects-from'the lower edge of the vertical flange.

This construction is illustrated at D, Fig. 3 of the drawings. Theangle-bars forming the upper and lower chords are connected rigidlytogether at their ends by horizontal rivets E, which pass through thevertical flanges or portions of the several angle-bars. The up per andlower chords are also connected together and rigidlyfixed to theaxle-boxes by the usual vertical anchoring-bolts F, which arepractically relieved by the rivets of all shear, and as the bolts passthrough the horizontal flanges of both the upper and lower chords theconnection of the frame with the boxes is greatly strengthened. Thevertical bolts are not, therefore, liable to become bent or worn andcause a permanent set or downward deflection of the side frame, which isso common in ordinary forms of diamond trucks.

The central separated portions of the .upper and lower chords areconnected rigidly and held spaced apart by a vertical substantiallyU-shaped member G, which in the construction shown is in the form of anangle-bar arranged with one flange vertical and riveted at its lowerpart to the lower chord and at its upper part to the vertical flanges orportions of the two angle-bars constitutingtheupperchord.Thelateralflange g of the member G projects outwardly from the inneredge of its vertical flange. The side frame is completed by a tie-bar H,which, as shown, is formed of an angle-bar having the ends of itshorizontal flange h extending beneath the axle-boxes and secured theretoby the vertical anchoring-bolts F and the central portion of itsvertical flange h secured to the vertical flanges of the lower chord andU-shaped connecting member G by the rivets h which connect the chord andconnecting member together. The end portions of the vertical flange ofthe tie-bar are sheared oif to permit the ends of the horizontal flangeto project beneath the axle-box, as described.

In Fig. 4 is shown a slightly-modified form of the side frame in whichthe upper chord O is formed of a Z-bar instead of two angle-bars. TheZ-bar is arranged with its web or body portion vertical and riveted atthe ends thereof to the end portions of the vertical flange or portionof the lower chord and with the ends of its lower flange over andresting on the end portions of the horizontal flange of the lower chord.This construction also af fords the double thickness of metal for thevertical anchoring-bolts and a large riveting area for the horizontalrivets connecting the ends of the chords.

In Figs. 5 and 6 is illustrated a construction in which the upper chordO is formed of a single angle-bar which is preferably of greater metalsection than either of the anglebars employed in the upper chord shownin Figs. 1 and 2, being substantially equal to that of the angle-barforming the lower chord.

gaging beneath the ends of the bolster. The

ends of the bolster project out through the spaces formed in the sideframes between the upper and lower chords and the vertical sides of theU-shaped connecting members G, and the bolster is guided in its verticalmovement and held from longitudinal displacement by guid c-platesZc,which are riveted to the sides of the bolster at the inner and outersides of the vertical U-shaped connecting members. These guide-plateshold the upper parts of the side frames from deflection toward or fromeachother.

In all of the constructions shown and described the preterablearrangement of the flanged bars of the upper and lower chords of theside frames is such as to provide two horizontal flanges or portionsthrough which the anchoring-bolts pass and two or more vertical flangesor portions for the rivets connecting the ends of the chords together;but this construction may be modified-for instance, as shown in Fig.6-without departing from the scope of my invention.

I claim as my invention 1. In a diamond truck, the combination ofaxle-boxes, of a side frame composed of an upper and a lower chord, saidlower chord having a horizontal flange and a vertical portion, the endsof said upper chord being riv- .eted to the vertical portion ofsaidlower chord, and vertical anchoring-bolts connecting said horizontalflange of the lower chord to said axle-boxes, substantially as setforth.

'2. In a diamond truck, the combination with axle-boxes, of a side framecomposed of an upper and a lower chord, said upper chord having ahorizontal flange and a vertical portion, the ends of said lower chordbeing riveted to the vertical portion of said upper chord, and verticalanchoring bolts connect ing said horizontal flange of the lower chord tosaid axle-boxes, substantially as set forth.

3. In a diamond truck, the combination with axle-boxes, of a side framecomposed of an upper chord and a lower chord, each having a horizontalflange and a vertical portion, the ends of said horizontal flanges beingsuperposed and the ends of said vertical portions being rivetedtogether, and vertical anchoring bolts connecting said horizontalflanges to said axle-boxes, substantially as set forth.

4. In a diamond truck the combination with axle-boxes, of a side framecomposed of an upper chord and a lower chord each comprising an anglebar having a horizontal flange and a vertical flange, the ends of saidhorizontal flanges being superposed and the ends of said verticalflanges being riveted together, and vertical bolts connecting saidhorizontal flanges to said axle-boxes, substan tially as set forth.

5. In a diamond truck, the combination with axle-boxes, of a side framecomposed of an upper and a lower chord, one of said chords having ahorizontal flange and a vertical flange, said other chord comprising twoanglebars each arranged with one flange vertical and one flangeextending laterally from the vertical flange, the ends of the verticalflanges of the angle-bars of one chord being riveted to the ends of thevertical flanges of said other chord, and vertical bolts connecting thehorizontal flange of one of said chords to said axle-boxes,substantially as set forth.

6. In a diamond truck, the combination with axle-boxes, of a side framecomposed of an upper and a lower chord, said lower chord having ahorizontal flange and a vertical flange, said upper chord comprising twoanglebars each arranged with one flange vertical and one flangeextending laterally from the vertical flange, the ends of the verticalflanges of the angle-bars of the upper chord being riveted to the endsof the vertical flange of said lower chord, and vertical bolts connecting the horizontal flanges of said lower chord to said axle-boxes,substantially as set forth.

7. In a diamond truck, the combination with axle-boxes, of a side framecomposed of an upper and a lower chord, said lower chord having ahorizontal flangeand a vertical portion, the ends of said upper chordbeing riveted to the vertical portion of said lower chord, verticalbolts connecting said horizontal flange of said lower chord to saidaxleboxes, and a substantially U shaped bar connecting said upper andlower chords between the aXle-boXes,'substantially as set forth.

8. In a diamond truck, the combination with axle-boxes, of a side framecomposed of an upper anda lower chord, said lower chord having ahorizontal flange and a vertical portion, the ends of said upperchordbeing riveted to the vertical portion of said lower chord, verticalbolts connecting said horizontal flange of said lower chord to saidaxleboXes, a substantially U -shaped member conmeeting said chordsbetween the axle-boxes and a tie-bar connected at its ends to saidaxle-boxes and at its central portion to said lower chord, substantiallyas set forth.

9. In a diamond truck, the combination with axle-boxes, of two sideframes each composed of an upper and a lower chord, said lower chordhaving a horizontal flange and a vertical portion, the ends of saidupper chord being riveted to the ends of the vertical portion of saidlower chord, vertical bolts connecting said horizontal flanges of thelower chords to said axle-boxes, and a spring-board connecting said sideframes, substantially as set forth.

Witness my hand this 17th day of May,

HERBERT R. KEITHLEY. Witnesses:

CHAS. W. PARKER, CLA DIA M. BENTLEY.

